AUTHOR=Yamashita Naoki , Hirayama Tomoko TITLE=A Method for Simultaneously Measuring Friction and Gap at Metal-Lubricant Interface by Combined Use of Atomic Force Microscopy and Line-and-Space Patterned Metal Films JOURNAL=Frontiers in Mechanical Engineering VOLUME=10 YEAR=2024 URL=https://www.frontiersin.org/journals/mechanical-engineering/articles/10.3389/fmech.2024.1470775 DOI=10.3389/fmech.2024.1470775 ISSN=2297-3079